China Neodymium And Ferrite Magnets Manufacturer & Supplier 
About the strength of ferrite magnets previously introduced article Maximum Surface Magnetic Force Strength of Ferrite Magnets, in order to help some people better understand, today I organized the next part of the Y30BH grade round ferrite magnets Gauss value data.
Sintered ceramic ferrite magnets, whether round, ring, rectangular, or curved(arc) shaped, generally have a Gaussian strength of about 1,000 gauss, with a range of roughly 500-1,700 gauss.
Round ferrite that can be glued in the center
The following gauss value data for y30bh round ferrite magnets is compiled for reference only and is subject to actual conditions, It's all axial magnetization..
4x3mm each anisotropic small ceramic ferrite with surface magnetic strength around 1120 gauss.
5mm x 2mm ceramic ferrite round with surface magnetic strength around 970 gauss.
5x3mm black normal magnet with surface magnetic flux density around 1025 gauss.
5x5mm each anisotropic ceramic round magnet with surface magnetic field strength at 1350 gauss.
8x3mm ferrite magnet round with surface magnetism around 107mt.
8mm diameter, 4mm thick round black ferrite with a surface magnetism of about 1100 gauss.
8x5mm round ferrite magnet with a surface magnetism of approximately 1180gs.
10x5mm round ferrite with an apparent magnetism of approximately 1130 gs.
12mm x 5mm ferrite surface magnetism at 1110 gs.
18x5mm Ferrite Absorbent Ferrite surface magnetism is also around 1110 gs.
20x8mm axial ferrite round. Surface magnetic strength is at 1190gs
20mm dia x 20mm thickness magnetized round ferrite with gauss at around 1580 gs.
30x5mm round ceramic magnet with gauss value around 600 gs.
30mm diameter, 10mm thickness round ferrite surface magnetic data at 1210 gauss.
Relevant ferrite strengths are described;